<template>
    <h3>试卷管理</h3>
    <!-- 表单 -->
     <div class="test-form">
        <div class="opt">
            <!-- 下拉菜单 -->
            <span class="label">分类:</span>
            <el-select @change="chooseCategoryFn" v-model="form.id" style="width: 360px"  placeholder="请输入考试分类" size="large">
                <el-option 
                v-for="item in categories" 
                :label="item.text" 
                :value="item.id" />
            </el-select>
        </div>
        <div class="opt">
            <span class="label">试卷:</span>
            <el-input v-model="form.name"  style="width: 360px" placeholder="请输入试卷名称" size="large"/>
        </div>
        <div class="opt">
            <span class="label">总分:</span>
            <el-input v-model="form.total" style="width: 360px" placeholder="总分" size="large" />
        </div>
        <div class="opt">
            <span class="label">及格:</span>
            <el-input v-model="form.passline" style="width: 360px" placeholder="及格线"  size="large"/>
        </div>
        <div class="opt">
            <span class="label">考试时长:</span>  
            <el-input v-model="form.time"  style="width: 360px" placeholder="考试时长" size="large" />
        </div>
        <div class="opt">
            <span class="label">题目数量:</span>  
            <el-input v-model="form.num"  style="width: 360px" placeholder="考试时长" size="large" />
        </div>

        <div class="opt">
            <span class="label">题目分值:</span>  
            <!-- disabled -->
            <el-input  v-model="form.score"  style="width: 360px" placeholder="考试时长" size="large" />
        </div>

        <div class="opt">
            <el-button @click="submitTestPaperFn"  type="primary" size="large">提交</el-button>
            <el-button @click="resetTestPaperFn" type="warning" plain size="large">重置</el-button>
        </div>
     </div>
    <!-- 表格 -->
    <div class="category-table">
        <el-table :data="tableData" stripe style="width: 100%">
            <el-table-column prop="index" label="序号" width="50" />
            <el-table-column prop="text" label="分类" width="180" />
            <el-table-column prop="name" label="试卷名称" width="180" />
            <el-table-column prop="total" label="总分" width="80" />
            <el-table-column prop="passline" label="及格线" width="80" />
            <el-table-column prop="time" label="时长(小时)" width="100" />
            <el-table-column prop="num" label="题目数量(个)" width="150" />
            <el-table-column prop="score" label="分值(分)" width="100" />
            <el-table-column label="操作">
                <template #default="scope">
                    <el-button size="small" type="danger" @click="handleDelete(scope.$index, scope.row)">
                        删除
                    </el-button>
                </template>
            </el-table-column>
        </el-table>
    </div>
</template>

<script setup lang="ts">
import { ref, reactive , watch} from 'vue'
import { categoryList , examAdd , examList, examRemove} from '../../api/request'
import { ElMessage, ElMessageBox } from 'element-plus';

// 表格数据
const tableData = ref<any>([])


interface RuleForm {
  id: string
  name: string
  text: string
  time: number |string
  total: number | string
  passline: number | string
  eid?:string
  num: number |string 
  score: number | string 
}
const categories = ref<any>([])

const form = reactive<RuleForm>({
    id: "",
    text: "",
    name: "",
    time: 2,
    total: 100,
    passline: 60,
    num: 0,
    score: 0
})

// 侦听器
watch(form, (newForm: any)=>{
    if(newForm.total && newForm.num) {
        form.score = newForm.total / newForm.num
    }
})

// 点击重置
const resetTestPaperFn = ()=> {
    form.id=""
    form.text=""
    form.name=""
    form.total=100
    form.passline=60
    form.time=2
    form.num = 0
    form.score = 0;
}

// 点击提交
const submitTestPaperFn = async ()=> {
    // 获取表单信息
    let {id, text , name , total, passline,time, num ,score} = form;
    // 判断是否有值
    if(id && text && name && total && passline && time) {
        await examAdd({id, text , name , total, passline,time, num ,score})
        .then(
            content=>{
                // console.log(content)
                let {code,msg} = content;
                if(code == 200) {
                    examListFn();
                    // 重置表单信息
                    resetTestPaperFn();
                    ElMessage.success(msg)
                }
                else {
                    ElMessage.error(msg)
                }
            },
            err=>{
                console.log(err)
            }
        )
    }
    else {
        ElMessage.error("缺少参数，请检查在提交")
    }
}


// 获取试卷列表
const examListFn = async () => {
    await examList()
    .then(
        content=>{
            // console.log('111',content);
            let {code,msg, result} = content;
            if(code == 200) {
                let arr = result.map((item: any,i:number)=>{
                    item.index = i + 1;
                    return item
                })
                tableData.value = arr;
            }
            else {
                ElMessage.error(msg)
            }
        }
    )
}

// 监听下拉菜单
const chooseCategoryFn = () => {
    let arr = categories.value.filter((item: any) => item.id == form.id)
    if(arr.length == 1) {
        form.text = arr[0].text;
    }
    // console.log(form.id);
    // console.log(form.text);
}

// 获取分类列表
const getCategoryListFn = async () => {
    await categoryList()
        .then(
            content => {
                // console.log(content)
                let { code, result } = content;
                if (code == 200) {
                    categories.value = result;
                }
            }
        )
}

// 点击删除
const handleDelete = (index: number, row: any) => {
    // console.log(index, row)
     // console.log(index, row)
    // 获取当前点击的选项
    let { eid, name } = row;
    ElMessageBox.confirm(
        `是否删除这个“${name}”试卷?`,
        '提示',
        {
            distinguishCancelAndClose: true,
            confirmButtonText: '确定',
            cancelButtonText: '取消',
        }
    )
        .then(async () => {
            // console.log("点击确定")
            // 删除考试分类
            await examRemove({ eid })
                .then(
                    content => {
                        let { code, msg } = content;
                        if (code != 200) {
                            ElMessage.error(msg)
                        }
                    }
                )
            // 删除程序中数组对应的数据
            tableData.value.splice(index, 1);
        })
        .catch(( ) => {
            // console.log("点击取消")
        })
}

// 初始化数据
getCategoryListFn();
examListFn();


</script>

<style lang="scss">
.test-form {
    .opt {
        margin-top: 15px;
        .label {
            width: 100px;
            display: inline-block;
            text-align: right;
            padding: 0 10px;
        }
    }
}
.category-table {
    margin-top: 15px;
}
</style>